Canon PIXMA iP2850 - Manual (Page 66)

Cleaning the Print Head
Clean the print head if lines are missing or if horizontal white streaks are present in the printed nozzle check
pattern. Cleaning unclogs the nozzles and restores the print head condition. Cleaning the print head
consumes ink, so clean the print head only when necessary.
1. Make sure that the power is turned on.
2. Hold down the ON/RESUME button until the POWER lamp flashes green once, then
release it immediately.
The printer starts cleaning the print head.
The cleaning will be complete when the POWER lamp lights green after flashing.
Do not perform any other operations until the printer completes the cleaning of the print head. This takes
about 30 seconds.
3. Check the print head condition.
To check the print head condition, print the nozzle check pattern .
Note
• If the problem is not resolved after cleaning the print head twice, clean the print head deeply.
Cleaning the Print Heads from Your Computer
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